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1 /* ======================================================================== | |
2 * Bootstrap: dropdown.js v3.2.0 | |
3 * http://getbootstrap.com/javascript/#dropdowns | |
4 * ======================================================================== | |
5 * Copyright 2011-2014 Twitter, Inc. | |
6 * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE) | |
7 * ======================================================================== */ | |
8 | |
9 | |
10 +function ($) { | |
11 'use strict'; | |
12 | |
13 // DROPDOWN CLASS DEFINITION | |
14 // ========================= | |
15 | |
16 var backdrop = '.dropdown-backdrop' | |
17 var toggle = '[data-toggle="dropdown"]' | |
18 var Dropdown = function (element) { | |
19 $(element).on('click.bs.dropdown', this.toggle) | |
20 } | |
21 | |
22 Dropdown.VERSION = '3.2.0' | |
23 | |
24 Dropdown.prototype.toggle = function (e) { | |
25 var $this = $(this) | |
26 | |
27 if ($this.is('.disabled, :disabled')) return | |
28 | |
29 var $parent = getParent($this) | |
30 var isActive = $parent.hasClass('open') | |
31 | |
32 clearMenus() | |
33 | |
34 if (!isActive) { | |
35 if ('ontouchstart' in document.documentElement && !$parent.closest('.navba
r-nav').length) { | |
36 // if mobile we use a backdrop because click events don't delegate | |
37 $('<div class="dropdown-backdrop"/>').insertAfter($(this)).on('click', c
learMenus) | |
38 } | |
39 | |
40 var relatedTarget = { relatedTarget: this } | |
41 $parent.trigger(e = $.Event('show.bs.dropdown', relatedTarget)) | |
42 | |
43 if (e.isDefaultPrevented()) return | |
44 | |
45 $this.trigger('focus') | |
46 | |
47 $parent | |
48 .toggleClass('open') | |
49 .trigger('shown.bs.dropdown', relatedTarget) | |
50 } | |
51 | |
52 return false | |
53 } | |
54 | |
55 Dropdown.prototype.keydown = function (e) { | |
56 if (!/(38|40|27)/.test(e.keyCode)) return | |
57 | |
58 var $this = $(this) | |
59 | |
60 e.preventDefault() | |
61 e.stopPropagation() | |
62 | |
63 if ($this.is('.disabled, :disabled')) return | |
64 | |
65 var $parent = getParent($this) | |
66 var isActive = $parent.hasClass('open') | |
67 | |
68 if (!isActive || (isActive && e.keyCode == 27)) { | |
69 if (e.which == 27) $parent.find(toggle).trigger('focus') | |
70 return $this.trigger('click') | |
71 } | |
72 | |
73 var desc = ' li:not(.divider):visible a' | |
74 var $items = $parent.find('[role="menu"]' + desc + ', [role="listbox"]' + de
sc) | |
75 | |
76 if (!$items.length) return | |
77 | |
78 var index = $items.index($items.filter(':focus')) | |
79 | |
80 if (e.keyCode == 38 && index > 0) index--
// up | |
81 if (e.keyCode == 40 && index < $items.length - 1) index++
// down | |
82 if (!~index) index = 0 | |
83 | |
84 $items.eq(index).trigger('focus') | |
85 } | |
86 | |
87 function clearMenus(e) { | |
88 if (e && e.which === 3) return | |
89 $(backdrop).remove() | |
90 $(toggle).each(function () { | |
91 var $parent = getParent($(this)) | |
92 var relatedTarget = { relatedTarget: this } | |
93 if (!$parent.hasClass('open')) return | |
94 $parent.trigger(e = $.Event('hide.bs.dropdown', relatedTarget)) | |
95 if (e.isDefaultPrevented()) return | |
96 $parent.removeClass('open').trigger('hidden.bs.dropdown', relatedTarget) | |
97 }) | |
98 } | |
99 | |
100 function getParent($this) { | |
101 var selector = $this.attr('data-target') | |
102 | |
103 if (!selector) { | |
104 selector = $this.attr('href') | |
105 selector = selector && /#[A-Za-z]/.test(selector) && selector.replace(/.*(
?=#[^\s]*$)/, '') // strip for ie7 | |
106 } | |
107 | |
108 var $parent = selector && $(selector) | |
109 | |
110 return $parent && $parent.length ? $parent : $this.parent() | |
111 } | |
112 | |
113 | |
114 // DROPDOWN PLUGIN DEFINITION | |
115 // ========================== | |
116 | |
117 function Plugin(option) { | |
118 return this.each(function () { | |
119 var $this = $(this) | |
120 var data = $this.data('bs.dropdown') | |
121 | |
122 if (!data) $this.data('bs.dropdown', (data = new Dropdown(this))) | |
123 if (typeof option == 'string') data[option].call($this) | |
124 }) | |
125 } | |
126 | |
127 var old = $.fn.dropdown | |
128 | |
129 $.fn.dropdown = Plugin | |
130 $.fn.dropdown.Constructor = Dropdown | |
131 | |
132 | |
133 // DROPDOWN NO CONFLICT | |
134 // ==================== | |
135 | |
136 $.fn.dropdown.noConflict = function () { | |
137 $.fn.dropdown = old | |
138 return this | |
139 } | |
140 | |
141 | |
142 // APPLY TO STANDARD DROPDOWN ELEMENTS | |
143 // =================================== | |
144 | |
145 $(document) | |
146 .on('click.bs.dropdown.data-api', clearMenus) | |
147 .on('click.bs.dropdown.data-api', '.dropdown form', function (e) { e.stopPro
pagation() }) | |
148 .on('click.bs.dropdown.data-api', toggle, Dropdown.prototype.toggle) | |
149 .on('keydown.bs.dropdown.data-api', toggle + ', [role="menu"], [role="listbo
x"]', Dropdown.prototype.keydown) | |
150 | |
151 }(jQuery); | |
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